Theologians and church denominations must ever be on the alert for the danger that their teachings and doctrines become entangled in or enslaved to some philosophical theory, for the sake of dialogue with the world. Then Christian faith would be substantially changed and the word of God muted. Christian theology needs to be also self-critical of its historic creeds and traditions, always realizing where its only decisive starting point and standard is. The Reformers—Luther, Calvin, Zwingli—radically